02-01-2005
Ghost Users
I am having a problem that I cannot figure out. RS6000 server running AIX 5.2. Users connect via TCP/IP and login and work just fine. When the user logs out of the application, I can run the "who" command or "w" command and the O/S still reports the user as logged in.
If I run "ps -tpts/xx" on the port they were on, it returns no processes. If I run "ps -ef|grep username" no processes are returned.
If I reboot the server, the user is removed.
Any ideas?
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LEARN ABOUT LINUX
mod_security
mod_security(3erl) Erlang Module Definition mod_security(3erl)
NAME
mod_security - Security Audit and Trailing Functionality
DESCRIPTION
Security Audit and Trailing Functionality
EXPORTS
list_auth_users(Port) -> Users | []
list_auth_users(Address, Port) -> Users | []
list_auth_users(Port, Dir) -> Users | []
list_auth_users(Address, Port, Dir) -> Users | []
Types Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]
list_auth_users/1 , list_auth_users/2 and list_auth_users/3 returns a list of users that are currently authenticated. Authentica-
tions are stored for SecurityAuthTimeout seconds, and are then discarded.
list_blocked_users(Port) -> Users | []
list_blocked_users(Address, Port) -> Users | []
list_blocked_users(Port, Dir) -> Users | []
list_blocked_users(Address, Port, Dir) -> Users | []
Types Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]
list_blocked_users/1 , list_blocked_users/2 and list_blocked_users/3 returns a list of users that are currently blocked from access.
block_user(User, Port, Dir, Seconds) -> true | {error, Reason}
block_user(User, Address, Port, Dir, Seconds) -> true | {error, Reason}
Types User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Seconds = integer() | infinity
Reason = no_such_directory
block_user/4 and block_user/5 blocks the user User from the directory Dir for a specified amount of time.
unblock_user(User, Port) -> true | {error, Reason}
unblock_user(User, Address, Port) -> true | {error, Reason}
unblock_user(User, Port, Dir) -> true | {error, Reason}
unblock_user(User, Address, Port, Dir) -> true | {error, Reason}
Types User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Reason = term()
unblock_user/2 , unblock_user/3 and unblock_user/4 removes the user User from the list of blocked users for the Port (and Dir) spec-
ified.
THE SECURITYCALLBACKMODULE
The SecurityCallbackModule is a user written module that can receive events from the mod_security Erlang Webserver API module. This module
only exports the function(s), event/4,5 , which are described below.
EXPORTS
event(What, Port, Dir, Data) -> ignored
event(What, Address, Port, Dir, Data) -> ignored
Types What = atom()
Port = integer()
Address = {A,B,C,D} | string() <v>Dir = string()
Data = [Info]
Info = {Name, Value}
event/4 or event/4 is called whenever an event occurs in the mod_security Erlang Webserver API module ( event/4 is called if Address
is undefined and event/5 otherwise). The What argument specifies the type of event that has occurred, and should be one of the fol-
lowing reasons; auth_fail (a failed user authentication), user_block (a user is being blocked from access) or user_unblock (a user
is being removed from the block list).
Note:
Note that the user_unblock event is not triggered when a user is removed from the block list explicitly using the unblock_user function.
Ericsson AB inets 5.5.2 mod_security(3erl)